The word deeded matters legally. A stall registered as a separate titled unit or as an exclusive-use common element under the Condominium Property Act, 1993 transfers with clear ownership, while an assigned but undeeded spot may simply be a board policy that a new corporation could reassign, which a buyer's lawyer will flag during the condition period.
Heated underground parking carries its own cost line, since it depends on the building's reserve fund to maintain the ramp, drainage and heating system, so a strong reserve fund study supports the value of that parking rather than the stall being a value add on its own with no ongoing cost behind it.
Joel Dyck confirms deeded status and reserve fund health before pricing a condominium with a parking stall or garage as part of the unit. Get your hand-reviewed valuation from Joel Dyck.